Suicide, death, and the destruction of the world:

Kurt Vonnegut Jr.’s Cat’s Cradle illustrates through Bokononism the idea that one’s concept of the world is limited to the experiences of the individual, and not based on a real-world objective reality. When Bokononists commit suicide, they say “Now I will destroy the whole world.” This refers to the fact that by committing suicide, the whole world from the perspective of one’s self is destroyed. In being born, one creates the world (insofar as the fact that despite the propaganda, we are all biased toward a self-centred world-view because of the problem of other minds). In suicide, one destroys the world.

I should note here, that I'm not talking about subjective idealism, but rather, an individualist frame of mind in which the universe's beginning and end relative to one's own experience is equal to birth and death.

As I have written in earlier works, suicide is an act, merely an event. There is intention, there is movement in it.

An alternative reading is that when one thing changes all things are changed in totality. This is a challenge to common conceptions of conservation of identity. For example, in death, one’s consciousness leaves this world, and the result is a changed and remade world. If one conceives of the universe as a unity, then the removal or addition of any part is a complete remaking; a complete destruction and reconstruction.

Every individual’s own birth and death is their own personal experience of world destruction and remaking. (Granted, if the Universe is an infinite unity, nothing can ever be truly added or removed from it, but that is not to say that its contents cannot be rearranged).

The universe is, of course, in a state of constant flux, and committing suicide is a conscious way of taking control of that constant change. It is exerting the will in such a way as to cause a remaking of the universe that is free of you. However, this is neglectful of one’s responsibility to remain in the world, and use the will to exact smaller changes than killing oneself. Using the will to remove one’s own will is counter-intuitive.

On energy, entropy, death, and the afterlife:

Required Reading: How death increases entropy,

Before broaching a more subjective and less theoretical approach to the idea of death, I thought I'd tackle some potential links between physics and death.

On energy and entropy:

 
Entropy can be described as the total of all displaced, and therefore unusable energy (however it is ultimately a much more complex topic, relating heavily to thermodynamics). It is well known that all matter requires some form of energy to move, operate, or otherwise live. 

Einstein’s law of the conservation of energy requires that any energy that is used in a process can not be caused to disappear or degrade. While the consumption of food provides energy, and sleep stores it for later use, such energies are expended through physical and mental activities, however strenuous. However, expended energy cannot be retained, reused, absorbed or lost entirely. Theoreticians have posited that entropy remains as a formless reserve of used and evermore useless energy.

On entropy and death:

    The concept of entropy is applicable to death if one considers that all of the elements of life require the consumption of some kind of energy, whether it is kinetic energy for movement, or electrical impulses within the brain for thought or body awareness, etc.

In death, all of these energies seem to be dispersed. Indeed, it appears that no energies are animate or expendable in death beyond the decomposition process - a final outlet for any remaining energy in the body. Presumably, in death those once animate energies of the body are transposed into entropy. As entropy can not be accessed, its existence can not be verified, nor can its significance be made obvious, should it exist.

For a short and amusing explanation of the link between death an entropy, I encourage you to read  the brief article by Dr. Crystal Cooper that I linked at the top of this post.

On entropy and the afterlife:

At the risk of leaning too much toward Judaeo-Christian views, the process of energy converting to entropy in death can metaphorically mirror the passage of souls to heaven (in any number of limited or minimal interpretations thereof), or it could be that process in fact. Though unverifiable in its supernaturalism, it could be that a form of energy taken to be the soul - or merely the energies expended by the life process - could live on in a different way for a different means, through entropy.

My intent is not to posit any kind of definitive afterlife interpretation, nor even to posit an afterlife at all. Rather, my intent is to foster some hope for a reconciliation of science to common faiths, without casting aside logic. It is my experience that parallels often signify either extreme similarity, or perfect identification of events. This is to say that two things which have potential to parallel in such a way could easily be one and the same thing, though perhaps in less fantastical or logical ways.